<!DOCTYPE html>
<html lang="en">

<head>
    <meta charset="UTF-8">
    <meta name="viewport" content="width=device-width, initial-scale=1.0">
    <meta http-equiv="X-UA-Compatible" content="ie=edge">
    <script src="https://code.jquery.com/jquery-3.4.1.min.js"
        integrity="sha256-CSXorXvZcTkaix6Yvo6HppcZGetbYMGWSFlBw8HfCJo=" crossorigin="anonymous"></script>
    <title>Document</title>
</head>

<body>
    <form>
        <input class="target" type="text" value="Field 1">
        <select class="target">
            <option value="option1" selected="selected">Option 1</option>
            <option value="option2">Option 2</option>
        </select>
        <input class="target" type="text" value="Field 2">
    </form>
    <div id="other">
        Trigger the handler
    </div>
    <script>
        $(".target").change(function () {
            alert("Handler for .change() called.");
        });
        $("#other").click(function () {
            $(".target").change();
        });
    </script>
</body>

</html>